MOTOR FEEDING BRUSH, MOTOR AND ELECTRIC POWER STEERING MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a motor feeding brush that can suppress the deterioration of performance caused by the movement of the motor feeding brush accompanied by the movement of a commutator, and to provide a motor equipped with the motor feeding brush, and an electric power steering motor. SOLUTION: A tip 16b is composed of a normal rotation sliding face 16c and a reverse rotation sliding face 16d as sliding faces, and a tapered face 16e. An arc center O2 at normal rotation being the center of an arc that formes the normal rotation sliding face 16c is located in advance in a position that is shifted by an angleβthat is equal to an angleαand advances in a direction opposite to the angleαwith respect to a center line L1. An arc center O3 at reverse rotation being the center of an arc that formes the reverse rotation sliding face 16d is located in a position that is shifted by the angleαthat is equal to the angleβand advances in a direction opposite to the angleβwith respect to the center line L1. COPYRIGHT: (C)2005,JPO&NCIPI